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Difference between PostgreSQL and IBM DB2
  • Last Updated : 30 Jun, 2020

1. PostgreSQL :
PostgreSQL is a powerful, open-source Object-relational database system. It provides good performance with low maintenance efforts because of its high stability. PostgreSQL was the first DBMS that implemented multi-version concurrency control (MVCC) feature.

2. IBM Db2 :
IBM Db2 is a family of data management products, including database servers, developed by IBM. It is a Relational Database Management System (RDBMS) which supports object-oriented features and non relational structure with XML. Db2 is designed to store, analyze and retrieve the data efficiently. It was initially released in 1983 and is written in C, C++, Java and Assembly language.



Difference between PostgreSQL and IBM Db2 :

SR.NOPostgreSQLIBM Db2
1.It is developed by PostgreSQL Global Development Group in 1989.It is developed by IBM in 1983.
2PostgreSQL server operating systems are FreeBSD, HP-UX, Linux, NetBSD, OpenBSD, OS X, Solaris, Unix and Windows.Db2 server operating systems are AIX, HP-UX, Linux, Solaris, Windows and z/OS.
3The primary database model for PostgreSQL is Relational DBMS.The primary database model for IBM Db2 is Relational DBMS.
4It is written in C language.It is written in C, C++, Assembly language, Java languages.
5Famous companies like National Audubon Society, Inc., FreshRealm, LLC, TIME Systems etc uses PostgreSQL.Famous companies like JPMorgan Chase, Bank of America, Scotiabank, Citi, etc use Db2.
6It uses ADO.NET, JDBC, native C library, ODBC, streaming API for large objects as APIs.It uses ADO.NET, JDBC, JSON style queries info, ODBC, XQuery as APIs .
7It is a open source software framework.It is a commercial databases.
8It supports Secondary indexes.It supports the secondary indexes without any restrictions.
9It supports C, .Net, C++, Java, JavaScript, PHP, Python, Ruby.It supports C, C++, Cobol, Java, Perl, PL/1, Python, R, Ruby.
10It provides access rights for users and roles.It provide fine grained access rights according to SQL-standard.

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